#include <stdio.h>
#include <iostream>

using namespace std;

int razn(int x);


int main(void)
{
  int y=8;

  cout<< "x do vychesleniya = "<< y;
  cout<< '\n';
  cout<< "x posle vychesleniya = "<< razn(y);

  return 0;
}

int razn(int x)
{
  x = 5*x-3*x;
  return(x);
}
